I know how to size joists and beams for decks (Span Tables) but I donâ€™t really know how to size rafters and their beams, especially for snow loads! (Iâ€™m a SoCal boy, donâ€™t know nuttin about snow! :-)
Iâ€™d like to know if this structure will fly in Snow Country (Colarado)
Roof is a 6:12
The stock would be Clear Dry (19 %) western red cedar. The rafter span would be just under 6â€™ (walls are 12â€™ square), and Iâ€™d like to use 2x6 rafters and 2x8 hips. The rafters would overhang 2â€™8 (span of 2â€™ 6.5â€).
The beams would be made up from 2, full sized (2â€ nominal) 2x10s glued up together, after planning the beams would net out at 3.75â€ x 9.75â€.
Think this will fly under a bunch of Snow?
Is there an Online Calculator that I can use, where I can choose all these parameters, including wood species (wr cedar) to find these beam and rafter sizes?
Iâ€™ve included a nifty 3d PDF you can Rotate and Zoom on (You use those three Tools top left) if you have the Adobe Reader Version 7.0.7 or newer, or Adobe Acrobat http://www.adobe.com/products/acrobat/readstep2.html
appreciate any advice!
Edited 10/17/2006 8:00 pm by JoeWood